# How to make vtkLineSource into vtkImageData?
**URL:** https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444
**Category:** Support
**Created:** [October 19, 2020, 12:24pm UTC](https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444 "2020-10-19T12:24:54Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@wulicheng](https://discourse.vtk.org/u/wulicheng)
#### Post date: [October 19, 2020, 12:24pm UTC](https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444/1 "2020-10-19T12:24:54Z")
How to make vtkLineSource into vtkImageData? Or how to convert vtkPolyData into vtkImageData?
Now I want to line in volume data of vtkImageData type.
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### Author:  [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [October 19, 2020, 2:15pm UTC](https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444/2 "2020-10-19T14:15:54Z")
What would you like to achieve?
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### Author:  [@wulicheng](https://discourse.vtk.org/u/wulicheng)
#### Post date: [October 20, 2020, 1:20am UTC](https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444/3 "2020-10-20T01:20:14Z")
I want to fused the line(now polydata) and the bone of imagedata? And I can move the line freely.
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### Author:  [@lassoan](https://discourse.vtk.org/u/lassoan)
#### Post date: [October 20, 2020, 2:15am UTC](https://discourse.vtk.org/t/how-to-make-vtklinesource-into-vtkimagedata/4444/4 "2020-10-20T02:15:07Z")
I’m not sure what you mean by fusing and you can do it many different ways, depending on what exactly your end goal is, but one way is: create a closed surface using tube filter, convert that to image using stencil filters, then combine them using image math filter.
Note that there is a high chance that what you would like to achieve is already implemented in 3D Slicer. If you write to the [Slicer forum](https://discourse.slicer.org) then you can get step-by-step instructions of how to do it in Slicer (probably without any custom programming).